Wiktor Czyż developed explicit inlay hints for polymorphic record fields in the input-output-hk/haskell-language-server repository, enhancing type clarity for developers working with complex Haskell records. He refactored the getFields function to accurately extract field labels, ensuring that inlay hints are reliable and maintainable across polymorphic types. This work involved deep code analysis and integration with the GHC API, as well as the addition of targeted tests to validate the new behavior. By focusing on IDE development and static analysis, Wiktor improved code readability and reduced ambiguity, ultimately streamlining debugging and navigation for Haskell Language Server users.